What Is a SEP IRA and How Does It Work?
A Simplified Employee Pension (SEP) IRA is a retirement savings plan designed specifically for self-employed individuals and small business owners. Unlike a traditional 401(k), which involves complex administrative overhead, the SEP IRA is built on the framework of a Traditional IRA but allows for significantly higher contribution limits.
In a SEP IRA, the employer makes all the contributions. Employees do not contribute via payroll deferral. This makes it an attractive option for business owners who want a straightforward way to provide retirement benefits to themselves and their staff without the cost of maintaining a more complex qualified plan. The funds are held in a separate account for each participant, and the business owner receives a tax deduction for the contributions made on behalf of themselves and their employees.
SEP IRA Eligibility Requirements for Employers and Employees
One of the most critical aspects of a SEP IRA is the requirement for parity. If an employer chooses to contribute to their own account, they must contribute the same percentage of salary to all eligible employees. An eligible employee is generally defined by the IRS as someone who:
- Is at least 21 years of age.
- Has worked for the business in at least three of the last five years.
- Has received at least $750 in compensation from the business for the year (for 2026).
Employers can choose to be less restrictive (e.g., allowing employees to participate immediately upon hire) but they cannot be more restrictive than the IRS guidelines. Certain employees, such as those covered by a collective bargaining agreement (union members) or non-resident aliens with no U.S. income, may be excluded from the plan.
2026 SEP IRA Contribution Limits and Rules
The primary draw of the SEP IRA is the high contribution ceiling. For 2026, contributions are limited to the lesser of 25% of the employee's compensation or $69,000.
The 25% Rule and Self-Employed Math
For a regular W-2 employee, the calculation is simple: 25% of gross pay. However, for a self-employed individual (sole proprietor or partner), the calculation is slightly more complex. You must subtract the deductible part of your self-employment tax and the contribution itself from your net earnings to determine the base compensation. This effectively brings the maximum contribution rate down to about 20% of your net adjusted profit.
SECURE Act 2.0 and Roth SEP IRAs
Until recently, all SEP IRA contributions were made on a pre-tax basis. However, following the passage of the SECURE Act 2.0, employers now have the option to offer Roth SEP IRAs. Under this new rule, contributions can be made on an after-tax basis, allowing the funds to grow tax-free, provided certain conditions are met during withdrawal. Note that many financial institutions are still updating their systems to support this new feature.
Key Benefits of Choosing a SEP IRA
There are several reasons why a SEP IRA is often the first choice for a growing business:
- High Limits: Compared to a Traditional or Roth IRA (limited to $7,000 for 2026), the $69,000 limit allows for rapid wealth accumulation.
- Contribution Flexibility: Business owners are not locked into a specific amount. If the business has a lean year, the owner can reduce or even skip contributions entirely.
- Administrative Simplicity: Setting up a SEP IRA involves filling out a one-page IRS form (Form 5305-SEP) and does not require annual filings like Form 5500.
- Immediate Vesting: 100% of the money in the account belongs to the employee immediately. This is a significant perk for employee retention and morale.
Comparing SEP IRAs vs. Solo 401(k)s and SIMPLE IRAs
While the SEP IRA is excellent, it is not always the best fit for every business.
- VS. Solo 401(k): For a business with no employees other than a spouse, a Solo 401(k) may allow for higher contributions at lower income levels because it allows both employer contributions and employee salary deferrals.
- VS. SIMPLE IRA: A SIMPLE IRA is often better for smaller businesses with many employees where the owner cannot afford to contribute 15-25% of everyone's salary. SIMPLE IRAs allow employees to contribute their own money with a basic employer match (usually 3%).
How to Open and Establish a SEP IRA Plan
Opening a SEP IRA is a three-step process:
- Execute a Formal Written Agreement: Most businesses use IRS Form 5305-SEP. This document outlines the eligibility requirements and the allocation formula. You do not file this with the IRS; you simply keep it in your records.
- Provide Information to Employees: You must give each eligible employee a copy of the 5305-SEP and information about the plan.
- Set Up the Accounts: A SEP-IRA account must be established for each eligible employee at a bank, insurance company, or other qualified financial institution.
Tax Treatment and Withdrawal Rules
Traditional SEP IRA contributions are tax-deductible for the business. The money grows tax-deferred until retirement.
Withdrawal Restrictions
Because it is an IRA, you generally cannot withdraw funds before age 59½ without incurring a 10% early withdrawal penalty in addition to ordinary income tax. There are exceptions for first-time home purchases, qualified higher education expenses, and certain medical costs.
Required Minimum Distributions (RMDs)
Like Traditional IRAs, SEP IRAs are subject to RMDs. Once you reach age 73 (as per current law), you must begin taking annual distributions from the account, or you will face significant IRS penalties.
Important Deadlines and Compliance Tips
One of the unique advantages of a SEP IRA is the deadline. Unlike many other plans that must be established by December 31st, a SEP IRA can be set up and funded as late as the tax filing deadline of the business, including extensions.
For example, if you are a sole proprietor filing on April 15th, you have until that date to open the plan and make a contribution for the previous tax year. If you file an extension until October 15th, you have until then to fund the account.
To remain compliant, ensure you apply the same contribution percentage to all employees. If you contribute 10% for yourself, you must contribute 10% for every eligible employee. Failing to do so can result in the disqualification of the plan and significant tax penalties.
Frequently asked questions
Can I have a SEP IRA and a Traditional IRA at the same time?+
Yes, you can have both. However, your ability to deduct contributions to a Traditional IRA may be limited if you or your spouse are covered by an employer-sponsored plan like a SEP IRA.
What happens if I hire employees later?+
Once an employee meets the eligibility requirements (21+, worked 3 of last 5 years), you must contribute to their SEP IRA at the same percentage you contribute for yourself.
Is a SEP IRA a better choice than a 401(k)?+
It depends. A SEP IRA is usually easier and cheaper to set up. However, a 401(k) may allow for larger contributions if you are a solo entrepreneur with lower net income due to the employee deferral component.
Are SEP IRA contributions mandatory every year?+
No. Contributions are completely discretionary. You can contribute 25% one year and 0% the next, depending on your business's cash flow.
Can I pull money out of my SEP IRA to buy a house?+
Yes, but it is treated like a Traditional IRA. You can withdraw up to $10,000 for a first-time home purchase without the 10% penalty, but you will still owe income tax on the distribution.